LICHENOPORA,. 
255 
D. 3454. 
60,159. 
D. 1395. 
D. 1396. 
D. 1397. 
D. 3425. 
D. 3426. 
D. 3430. 
B. 3431. 
D. 3432. 
D. 3433. 
stage. Maastrichter Kalk. Maastricht. Yau Breda Coll. Figs. 7l, 
72, p. 254, 
Three zoaria, of which one is one of the variety with the zoarium 
pointed below ; the second is an unsymmetrical zoarium, with 
raised groups of apertures on one half hut not on the other ; the 
third is a young zoarium in the cariosa stage. These three zoaria 
show the relation of the stellata to the cariosa stage' ; one is a simple 
cariosa ; the second has small prominences marking the beginning 
of the radial groups of the adult stellata ; the third is a broken 
specimen with the better developed stellate characters of stellata. 
Maastrichter Kalk. Maastricht. Van Breda Coll. Figs. 67, 08, 
p. 252. 
A collection of sixty-eight zoaria ; they are flat-based forms, usually 
with short fusiform bundles of zooccia and large central areas ; 
they are therefore the var. sellula of von Hagenow. They vary 
in diameter from 3 to 7 ram. Maastrichter Kalk. Maastricht. 
Van Breda Coll. 
A zoarium (8 mm. in diameter) with a young zoarium in the stage 
eariosa (2 mm. in diameter) growing on it. Labelled Defrancm 
cliiidema by Vine. Maastrichter Kalk. Maastricht. Vine Coll. 
Two zoaria (on slide) ; one is 5 mm. in diameter; the other, which is 
in the suhsellnla stage, is 3-5 mm. in diameter. Labelled Defrancia 
diadema by Vine. Maastrichter Kalk. Maastricht. Vine Coll. 
A young zoarium, 2*5 mm. in diameter. Labelled by Vine Defrancia 
sellula. Maastrichter Kalk. Maastricht. Vine Coll. 
A tube with seventeen zoaria, Avhich vary greatly in shape, but most 
of them are of the conical pedunculate form ; they vary from forms 
twice as wide as they are high to others in which the diameter and 
height are equal. Some have blunt flat forms, 10 mm. in diameter 
and barely 5 mm. thick ; most of these flat varieties have a base 
with a small projecting peduncle ; one of them, which is 10 mm. in 
diameter by 4 mm. high, has no trace of the peduncle. Of the 
fungiform specimens one has a disc 7 mm. in diameter and 2 mm. 
thick, on a flat-based peduncle 4 mm. long and 3 to 4 mm. thick ; 
another is regularly obconic, though with flat point, and it is 6 mm. 
in diameter and 6 mm. high, and has a base 2*5 mm. in diameter ; 
another has a narrow curved peduncle. Maastrichter Kalk. 
Maastricht. Van Breda Coll. 
One zoarium in the cariosa stage, 5 mm. in diameter and 4-5 mm. high, 
with the surface very worn. Maastrichter Kalk. Maastricht. 
Van Breda Coll. 
A very worn thick zoarium. Maastrichter Kalk. Maastricht. Van 
Breda Coll. 
A zoarium, attached to which is a young specimen in the cariosa stage. 
Maastrichter Kalk. Maastricht. Van Breda Coll. 
A zoarium in the cariosa stage (on slide). Maastrichter Kalk. 
Maastricht. Van Breda Coll. 
Two small zoaria (in tube). Both specimens are turbinate. The 
